Artefact: Design Conventions SKILL.md skillA
Artefact: Design Conventions from jasonwarrenuk/goblin-mode is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add jasonwarrenuk/goblin-mode/Artefact: Design Conventions@git:20261015.06ffb26Pins git:20261015.06ffb26 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- jasonwarrenuk/goblin-mode
- Path
skills/artefact-conventions/SKILL.md- Versions recorded
- 9
- Latest version
- git:20261015.06ffb26, committed Oct 15, 2026
- First version recorded
- Aug 15, 2026
- Size
- 9,439 bytes
- Repository stars
- 6
- License
- none declared
Jason's structural and epistemic-honesty conventions for every artefact Claude creates.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Artefact design conventions
Every artefact Claude writes for Jason (a claude.ai/Cowork Artifact, a
Claude Code project artefact, a ported real app's styling pass) follows the
same location rule and the same values, expressed in a bespoke way each
time. The full ruleset lives in
`~/.claude/library/references/artefact-conventions.md`; this skill is the
procedure that gets it applied.
**Announce at start** (briefly, not a whole paragraph): which artefact
you're about to write and where.
## Step 1: Location, always
Every artefact (named-skill output or something created ad hoc
mid-conversation) writes under `<project-root>/docs/artefacts/`, defaulting
to `{slug}.html` at the top level. Any depth of nesting beneath that
directory is valid when the artefact joins a set:
`docs/artefacts/{collection}/{slug}.html`, with an `index.html` hub in the
collection directory linking its members.
`<project-root>/site/` is the one other valid location, **only when Jason
asks for it explicitly**. Never infer it, never relocate an artefact there
unprompted.
If there's no obvious project root (a bare claude.ai conversation with no
…Read the whole file at its exact version.
How to install
mdr add jasonwarrenuk/goblin-mode/Artefact: Design Conventions@sha256:bf8c90382c7f5093The line at the top of this page pins the label git:20261015.06ffb26, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_pefpdgcetq7dtsfm)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 9 versions of this file, between Aug 15, 2026 and Oct 15, 2026, about one every 8 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261015.06ffb26 latest | 2026-10-15 | 06ffb26 | 9,439 B | A | view · diff |
| git:20261008.c2dff9e | 2026-10-08 | c2dff9e | 9,312 B | A | view · diff |
| git:20261008.d6cb2e9 | 2026-10-08 | d6cb2e9 | 9,234 B | A | view · diff |
| git:20260928.6caf1ea | 2026-09-28 | 6caf1ea | 9,233 B | A | view · diff |
| git:20260910.d07fb9a | 2026-09-10 | d07fb9a | 9,255 B | A | view · diff |
| git:20260826.56f7a2e | 2026-08-26 | 56f7a2e | 9,309 B | A | view · diff |
| git:20260826.9a0f2b5 | 2026-08-26 | 9a0f2b5 | 9,301 B | A | view · diff |
| git:20260816.86ff2f3 | 2026-08-16 | 86ff2f3 | 8,973 B | A | view · diff |
| git:20260815.ca78469 | 2026-08-15 | ca78469 | 5,478 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (9439 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
jasonwarrenuk/goblin-mode · 6 stars · license none declared · pushed 2026-11-06 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_pefpdgcetq7dtsfm GET https://markdownregistry.com/api/v1/resolve?ref=jasonwarrenuk/goblin-mode/Artefact: Design Conventions GET https://markdownregistry.com/api/v1/blob/bf8c90382c7f5093621736a8ec45704fd0aa537eb39337ee8e853327b00d833a
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.